Cluster-lamp for inverted limp mantles.



H. LYON.

CLUSTER LAMP FOR'INVERTED LIMP MANTLES.

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1,202,080. v Patented Oct. 24,1916.

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UNIE l STATES PATENT OFFICE.

HOWARD LYON, OF GLOUCESTER CITY, NEW JERSEY, ASSIGNOR T0 WELSBACH LIGHT COMPANY, OF GLOUCESTER CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

Specification of Letters Patent.

Patented Oct. 24, 1916.

Application filed February 18, 1916. Serial No. 79,061.

To all whom it may concern: Be it known that I, HOWARD LYON a citizen of the United States, residing at Gloucesthereof.

My invention relates to gas lamps designed for use with limp mantles of the Gulbrandsen Patent No. 1,133,470, dated March 30, 1915. The mantle of this Gulbrandsen patent must be less than 1 inch in diameter when shaped, in order to shape and harden properly when used in connection with ordinary city gas pressures. Owing to the small diameter of these mantles, difliculty has been found in lighting them from a single pilot light.

After considerable experimentation, I have discovered that the circle inolosing the mantles when shaped should not be over 3%; inches in diameter and is preferably not over 23- inches in diameter, in order to insure lighting of all the mantles.

In the drawings, referring to the form of Fig. 1, 2 is the gas supply pipe, 3 the control valve and 4 the usual hood having air inlets leading to the Bunsen mixer tube 5. The tube 5 leads to the manifold 6 having the arms 7 extending outwardly and downwardly, and provided with the burner tips 8 to which are screwed the rings 9 carrying the mantles 10. As stated in the Gulbrandsen patent above referred to, the joint is comparatively tight between the mantle and the burner tip.

11 is the pilot light tube extending from below the valve andhaving the adjustable controlling screw 12.

In Fig. 2, I show a modified form wherein the tube 5" leads to a circular box 6*, the mixture passing through a gauze 13 and flowing down to the burner tips 8. In this form, the mantles may be slightly farther apart, or slightly farther from. the lighting means than in the first form, as in the box form of the burner head the manifold will spread the gas better from mantle to mantle, or tip to tip.

In the use of the device, the pilot light will serve to light the various mantles either from each other or from a central lighting means such as the skirt of my Patent 1,158,- 249, or the lighting means of my pending application Serial No. 41,517, filed July 23, 1915.

The advantages of my invention will be apparent to those skilled in the art, since by limiting the size ofthe circle within which the mantles are contained, I am enabled to light the necessarily small Gulbrandsen mantles by using a single pilot light either with or without additionallighting means. Moreover, owing to the proximity of the mantles to the mixer tube there will be some preheating of the mixture, thus aiding in producing a high temperature.

The form of the burner, burner head tips, etc., may be varied without departing from my invention.

I claim:

An incandescent gas lamp of the cluster type, having tips arranged to receive small limp mantles with a tight joint between the tips and the mantles, the depending tips being arranged so that the mantles will be contained within a circle of not over 3% inches diameter; substantially as described.

In testimony whereof, I have hereunto set my hand.

HOWARD LYON.

Witnesses:

J. H. JOHNSON, A. M. RITCHIE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. O. 

